Hat which can serve as a megaphone



FIG. 1 is a front perspective view of a hat showing my new design with the human head shown in dotted lines being for illustration only;

FIG. 2 is a bottom left side perspective view thereof;

FIG. 3 is a top right side perspective view thereof;

FIG. 4 is a right side perspective view thereof;

FIG. 5 is a left side perspective view thereof;

FIG. 6 is a top perspective view; and,

FIG. 7 is a bottom perspective view.

The broken lines are for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a hat which can serve as a megaphone, as shown and described. 